TransMedics Group, Inc.
TMDX- Exchange
- Nasdaq
- Industry
- Electromedical & Electrotherapeutic Apparatus
- SEC CIK
- 0001756262
In the last 90 days, TransMedics Group, Inc. insiders filed 1 open-market purchase and 0 sales; 375 institutions reported holding it in 13F filings for Q2 2026, worth $2.31B in total; no superinvestor holds it.
13F holders, Q1 2026
Institutional positions in TransMedics Group, Inc. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 416
- −3 vs. Q4 2025
- Shares held
- 36.5M
- +2.95M (+8.8%) vs. Q4 2025
- Total value
- $3.63B
- −$453.7M (−11.1%) vs. Q4 2025
- New holders
- 67
- 149 more added
- Sold out
- 70
- 137 more reduced
10 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting TMDX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 375 | $2.31B |
| Q1 2026 | 416 | $3.63B |
| Q4 2025 | 429 | $4.53B |
| Q3 2025 | 388 | $4.17B |
| Q2 2025 | 368 | $4.93B |
| Q1 2025 | 298 | $2.63B |
| Q4 2024 | 315 | $2.30B |
| Q3 2024 | 374 | $5.74B |
| Q2 2024 | 340 | $5.09B |
| Q1 2024 | 262 | $2.52B |
| Q4 2023 | 249 | $2.76B |
| Q3 2023 | 222 | $1.91B |
| Q2 2023 | 240 | $2.73B |
| Q1 2023 | 225 | $2.26B |
| Q4 2022 | 200 | $1.79B |
| Q3 2022 | 178 | $1.18B |
| Q2 2022 | 135 | $719.7M |
| Q1 2022 | 110 | $561.4M |
| Q4 2021 | 121 | $384.7M |
| Q3 2021 | 120 | $636.5M |
| Q2 2021 | 124 | $623.5M |
| Q1 2021 | 107 | $773.0M |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding TransMedics Group, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Los Angeles Capital Management LLC | 4,590 | $456.3K | 0.00% | −20,970−82.0% | Reduced |
| Generali Investments, Management Co LLC | 4,614 | $458.7K | 0.11% | +1,736+60.3% | Added |
| Intrust Bank NA | 4,642 | $461.5K | 0.04% | +86+1.9% | Added |
| CFG Wealth Management Services, Inc. | 4,689 | $466.1K | 0.42% | +4,689 | New |
| Private Advisor Group, LLC | 4,721 | $469.3K | 0.00% | +4,721 | New |
| Abundance Wealth Counselors | 4,891 | $486.2K | 0.07% | −1,271−20.6% | Reduced |
| Maryland State Retirement & Pension System | 4,972 | $494.3K | 0.01% | −43−0.9% | Reduced |
| Prosight Management, LP | 5,000 | $497.1K | 0.08% | +5,000 | New |
| RB Capital Management, LLC | 5,081 | $505.1K | 0.11% | 00.0% | Unchanged |
| Cornerstone Wealth Management, LLC | 5,097 | $506.7K | 0.03% | −19−0.4% | Reduced |
| Wiley Bros.-Aintree Capital, LLC | 5,137 | $510.7K | 0.00% | −1,595−23.7% | Reduced |
| Keebeck Wealth Management, LLC | 5,175 | $514.4K | 0.06% | +572+12.4% | Added |
| Ieq Capital, LLC | 5,195 | $516.4K | 0.00% | +5,195 | New |
| Pictet Asset Management Holding SA | 5,266 | $523.5K | 0.00% | +408+8.4% | Added |
| Kestra Advisory Services, LLC | 5,272 | $524.1K | 0.00% | −397−7.0% | Reduced |
| Catalyst Capital Advisors LLC | 5,355 | $532.3K | 0.01% | −1,220−18.6% | Reduced |
| ProShare Advisors LLC | 5,405 | $537.3K | 0.00% | −1,305−19.4% | Reduced |
| Janney Montgomery Scott LLC | 5,455 | $542.0K | 0.00% | −83−1.5% | Reduced |
| Centiva Capital, LP | 5,674 | $564.1K | 0.03% | +5,674 | New |
| Bank Julius Baer & Co. Ltd, Zurich | 5,711 | $567.7K | 0.00% | −52−0.9% | Reduced |
| Yorktown Management & Research Co Inc | 5,800 | $576.6K | 0.48% | +2,300+65.7% | Added |
| Values First Advisors, Inc. | 5,944 | $590.9K | 0.31% | +181+3.1% | Added |
| Gilder Gagnon Howe & Co LLC | 6,130 | $609.4K | 0.01% | −77−1.2% | Reduced |
| XTX Topco Ltd | 6,132 | $609.6K | 0.01% | −7,561−55.2% | Reduced |
| Havemeyer Place LP | 6,170 | $613.4K | 0.07% | +4,093+197.1% | Added |
| Group One Trading, L.P. | 6,336 | $629.9K | 0.02% | +2,145+51.2% | Added |
| Allspring Global Investments Holdings, LLC | 6,465 | $649.1K | 0.00% | +652+11.2% | Added |
| Harbour Capital Advisors, LLC | 5,807 | $665.8K | 0.13% | −20−0.3% | Reduced |
| Amundi | 6,897 | $685.6K | 0.00% | +1,640+31.2% | Added |
| SG Americas Securities, LLC | 6,910 | $687.0K | 0.00% | −8,815−56.1% | Reduced |
| Captrust Financial Advisors | 6,969 | $692.8K | 0.00% | +5,289+314.8% | Added |
| Advisor Group Holdings, Inc. | 6,988 | $694.6K | 0.00% | +115+1.7% | Added |
| KLP Kapitalforvaltning AS | 7,100 | $705.8K | 0.00% | +200+2.9% | Added |
| Oasis Advisors, LLC | 7,232 | $718.9K | 0.14% | +7,232 | New |
| Squarepoint Ops LLC | 7,274 | $723.1K | 0.00% | −103,222−93.4% | Reduced |
| Polen Capital Management LLC | 7,422 | $737.8K | 0.01% | −3,406−31.5% | Reduced |
| Resources Investment Advisors, LLC. | 7,507 | $746.3K | 0.01% | −13−0.2% | Reduced |
| Stifel Financial Corp | 7,566 | $752.1K | 0.00% | −76−1.0% | Reduced |
| Quadrant Capital Group LLC | 7,647 | $760.2K | 0.02% | −34−0.4% | Reduced |
| AQR Capital Management LLC | 7,779 | $773.3K | 0.00% | +2,971+61.8% | Added |
| Oregon Public Employees Retirement Fund | 7,784 | $773.8K | 0.01% | −13−0.2% | Reduced |
| Quantinno Capital Management LP | 8,059 | $801.1K | 0.00% | +5,354+197.9% | Added |
| Vanguard Investments Australia, Ltd. | 8,118 | $807.0K | 0.00% | +8,118 | New |
| State Board of Administration of Florida Retirement System | 8,217 | $816.9K | 0.00% | 00.0% | Unchanged |
| Kensington Investment Counsel, LLC | 8,291 | $824.2K | 0.40% | −7,293−46.8% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 8,451 | $840.1K | 0.00% | −9−0.1% | Reduced |
| Canada Pension Plan Investment Board | 8,500 | $845.0K | 0.00% | −36,100−80.9% | Reduced |
| CI Private Wealth, LLC | 8,641 | $857.7K | 0.00% | +5,557+180.2% | Added |
| MML Investors Services, LLC | 8,744 | $869.2K | 0.00% | −3,190−26.7% | Reduced |
| State of Tennessee, Treasury Department | 8,744 | $869.2K | 0.00% | −4,789−35.4% | Reduced |
| Strong Tower Advisory Services | 8,891 | $883.9K | 0.17% | +8,891 | New |
| Arizona State Retirement System | 8,918 | $886.5K | 0.01% | −199−2.2% | Reduced |
| Victory Capital Management Inc | 8,961 | $890.8K | 0.00% | −18,916−67.9% | Reduced |
| Virginia Retirement Systems Et Al | 9,100 | $904.6K | 0.01% | −1,300−12.5% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 9,121 | $906.7K | 0.01% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 9,306 | $925.1K | 0.00% | +675+7.8% | Added |
| Yousif Capital Management, LLC | 9,421 | $936.5K | 0.01% | −70−0.7% | Reduced |
| Park Avenue Securities LLC | 9,790 | $973.0K | 0.01% | +1,328+15.7% | Added |
| Amalgamated Bank | 9,819 | $976.0K | 0.01% | −70−0.7% | Reduced |
| NLB Skladi, upravljanje premozenja, d.o.o. | 10,170 | $1.01M | 0.05% | +2,500+32.6% | Added |
| Natixis Advisors, L.P. | 10,220 | $1.02M | 0.00% | −1,803−15.0% | Reduced |
| Virtu Financial LLC | 10,367 | $1.03M | 0.04% | −16,582−61.5% | Reduced |
| Portolan Capital Management, LLC | 10,688 | $1.06M | 0.06% | −86,205−89.0% | Reduced |
| Steinberganna Wealth Management | 11,596 | $1.15M | 0.55% | +11,596 | New |
| Winton Group Ltd | 11,941 | $1.19M | 0.04% | +6,318+112.4% | Added |
| Campbell Newman Asset Management Inc | 12,248 | $1.22M | 0.10% | +209+1.7% | Added |
| HighTower Advisors, LLC | 12,519 | $1.24M | 0.00% | −3,888−23.7% | Reduced |
| Voya Investment Management LLC | 12,589 | $1.25M | 0.00% | +937+8.0% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 13,101 | $1.30M | 0.00% | −3,164−19.5% | Reduced |
| Shelton Wealth Management, LLC | 13,148 | $1.31M | 0.58% | +1,263+10.6% | Added |
| Sit Investment Associates Inc | 13,380 | $1.33M | 0.03% | 00.0% | Unchanged |
| Handelsbanken Fonder AB | 13,900 | $1.38M | 0.00% | +2,900+26.4% | Added |
| Summit Financial, LLC | 14,176 | $1.41M | 0.02% | +458+3.3% | Added |
| Timothy G. Youngquist 2020 Irrevocable Trust | 14,444 | $1.44M | 0.70% | +4,815+50.0% | Added |
| Vanguard Global Advisers, LLC | 14,595 | $1.45M | 0.00% | +14,595 | New |
| Public Employees Retirement System of Ohio | 14,666 | $1.46M | 0.00% | +1,094+8.1% | Added |
| HB Wealth Management, LLC | 14,843 | $1.48M | 0.01% | +107+0.7% | Added |
| D.A. Davidson & Co. | 14,971 | $1.49M | 0.01% | −363−2.4% | Reduced |
| Russell Investments Group, Ltd. | 15,121 | $1.50M | 0.00% | +8,250+120.1% | Added |
| Louisiana State Employees Retirement System | 15,200 | $1.51M | 0.03% | −500−3.2% | Reduced |
| Manufacturers Life Insurance Company, The | 15,234 | $1.51M | 0.00% | −457−2.9% | Reduced |
| Franklin Resources Inc | 15,255 | $1.52M | 0.00% | −516−3.3% | Reduced |
| Blue Jean Financial LLC | 15,273 | $1.52M | 1.25% | +15,273 | New |
| Twinbeech Capital LP | 15,600 | $1.55M | 0.16% | +15,600 | New |
| Marshall Wace, LLP | 15,646 | $1.56M | 0.00% | −174,824−91.8% | Reduced |
| Gladstone Institutional Advisory LLC | 16,595 | $1.65M | 0.06% | −10−0.1% | Reduced |
| Teachers Retirement System of the State of Kentucky | 16,779 | $1.67M | 0.01% | +8,260+97.0% | Added |
| State of Alaska, Department of Revenue | 16,870 | $1.68M | 0.02% | −531−3.1% | Reduced |
| State of New Jersey Common Pension Fund D | 16,924 | $1.68M | 0.01% | −1,500−8.1% | Reduced |
| Cetera Investment Advisers | 17,073 | $1.70M | 0.00% | +6,302+58.5% | Added |
| Jump Financial, LLC | 17,387 | $1.73M | 0.03% | +13,987+411.4% | Added |
| Cambridge Investment Research Advisors, Inc. | 17,445 | $1.73M | 0.00% | −224−1.3% | Reduced |
| Dana Investment Advisors, Inc. | 17,593 | $1.75M | 0.05% | +1,935+12.4% | Added |
| MetLife Investment Management | 18,327 | $1.82M | 0.01% | −193−1.0% | Reduced |
| New York State Common Retirement Fund | 18,640 | $1.85M | 0.00% | 00.0% | Unchanged |
| Illinois Municipal Retirement Fund | 19,618 | $1.95M | 0.02% | −915−4.5% | Reduced |
| Taylor Frigon Capital Management LLC | 19,718 | $1.96M | 1.12% | −105−0.5% | Reduced |
| Commonwealth Equity Services, LLC | 20,132 | $2.00M | 0.00% | −2,359−10.5% | Reduced |
| Creative Planning | 20,637 | $2.05M | 0.00% | −993−4.6% | Reduced |
| Fifth Third Bancorp | 20,802 | $2.07M | 0.00% | +20,363+4,638.5% | Added |